19405440

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1123}}^1$

素因数の和:1151

約数の個数: 128

約数和(自身を含む): 68788800

約数和(自身を除く): 49383360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1123, 1152, 1440, 1728, 1920, 2160, 2246, 2880, 3369, 3456, 4320, 4492, 5615, 5760, 6738, 8640, 8984, 10107, 11230, 13476, 16845, 17280, 17968, 20214, 22460, 26952, 30321, 33690, 35936, 40428, 44920, 50535, 53904, 60642, 67380, 71872, 80856, 89840, 101070, 107808, 121284, 134760, 143744, 151605, 161712, 179680, 202140, 215616, 242568, 269520, 303210, 323424, 359360, 404280, 431232, 485136, 539040, 606420, 646848, 718720, 808560, 970272, 1078080, 1212840, 1293696, 1617120, 1940544, 2156160, 2425680, 3234240, 3881088, 4851360, 6468480, 9702720, 19405440]

約数ペア:

[(1, 19405440), (2, 9702720), (3, 6468480), (4, 4851360), (5, 3881088), (6, 3234240), (8, 2425680), (9, 2156160), (10, 1940544), (12, 1617120), (15, 1293696), (16, 1212840), (18, 1078080), (20, 970272), (24, 808560), (27, 718720), (30, 646848), (32, 606420), (36, 539040), (40, 485136), (45, 431232), (48, 404280), (54, 359360), (60, 323424), (64, 303210), (72, 269520), (80, 242568), (90, 215616), (96, 202140), (108, 179680), (120, 161712), (128, 151605), (135, 143744), (144, 134760), (160, 121284), (180, 107808), (192, 101070), (216, 89840), (240, 80856), (270, 71872), (288, 67380), (320, 60642), (360, 53904), (384, 50535), (432, 44920), (480, 40428), (540, 35936), (576, 33690), (640, 30321), (720, 26952), (864, 22460), (960, 20214), (1080, 17968), (1123, 17280), (1152, 16845), (1440, 13476), (1728, 11230), (1920, 10107), (2160, 8984), (2246, 8640), (2880, 6738), (3369, 5760), (3456, 5615), (4320, 4492)]